Automatic gate for pulp-boxes.



H. S. HAROURT.

.AUTOMATIC GATE FOR PULP BOXES.

, APPLIGATXON LED MAY 1G 1914.

Patente@ Bw 29, QM.

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HAERY S. HARGOURT, Ol ERIE, E NSYLVANEA, SSIGNOB,

:i citizen oi die lfiiileel States, iesidiiig si, in lie County of Eie zuid .Stime ef a Feimsylvenizi, lime invented Cerwin new und useful liiipruveiiients in Automeile Gases fos Pulp-Boxes; and (le hereby cleclaire the following to full, clear, and eec leseyiption ei' the invention, such as n eci iii lle eit to 'Wl'iieli .e the eeeompeiiying drawings :uid zo the leit-ers of referees marked thereon, forming pei of this speei l cziioii.

'lily invention i'el to paper making iimeliiiimy. and pue: uly o me machine iii e suieieiitly e' iiimmi'eeture papel. oit tie :ing less Water lieiein, flowing sized opening onto a is mfeling et :i given speed? liieliei glider lizm when more lille pulp. lt is also Well known owing pelo ii is Very difficult e0 i," el *die iioflioiiioii of libel' incl alwefs the same.

The features of my invention will appear iii the speciiieneion and Claims, and are illustiziecl in the :iecoiiipaiiyiiig drawings, in which?- l-"igurel is i view partially in side ele- 'mi'iinllif in elevatio i iid psrtiallv in seeexon on isle luie fz/g/ in l In eliese iliewiiigs in dicn'es a puls suppljrimpe leading `from a supply pump (ziet shown) through which pipe the 'pulp 'is pumloez'l into e pulp box B. This pulp box if, is pi vided. with an. @eer-fiow BQ from .1l plie ation filed May -S.

a A soufee ei sappig; 1 own), so elia# *Le level of the pulp within glie nos l5` nav always be as iziieezed by broken line lieleby n' iiiiizeiiii pressure Within the foe-; E. m bei B? is provided willi im ope B3, through Wliieh elle pulp muis fiom elle loof; E? on lgo the spout B4, see 5512) and tliei-eeom on io lie sei'een machine (noe siiesng. opening B3, is Generelle@ li* means of gele Efe-life C, sul?.- e113; mounted in C", enel is eiiliiiaiily epened mi l. elosed by ehe seperated screw C?.

In eeiiyiiig out my leven n :i peo-e ie i1 section of the pipe Willi lieis e, a, .ilic-i'fein. for tlie piiipese si: resist -e passage of pulp llieethrougli, and l `prei-'ide aiepeiiiiig a'., le pipe Wliieli l elose by means of lie lexilile flieplirem D? and place iliefeoii eyliiidei E, si seme 5e elle wipe lijf means ees e. f l' tlien place upon the l hin tlie cylinder E, 'a que "7 ef lle iieeiie itl'iai will e eyious effect upon lille dief p mim then place within elle ejJlinflc-r lu. e piston F3 which ies'zs upon elle liquiil Seeui'e upon tlie side of 'iee pnl box E, i place s .lsiaelet G, upon lie upper end of Tillich is pivolefl :i level` G", and io one enel of saifl lever G', lie vulve oper-seing screw C2, is suspencled by means of the pivoteel bleek c, which is pivoecl iii the enl of said lever G', l j; mesas Aof *he pivot c. A piston-rofl H3 is secured in tlie piston lf, encl'eiiencls upwardly and is pivoteol to the opposie end of Le lever Gt by means of die pivot g. Slidably seeuied 'upon lie levei` G, is e weight J, which may be moved along seid levez G', and secured in any positioii desired, by means of the set screw J so as te counter balance the valve :incl sarei mechanism C enel C2.

ln opeialsion, the screw C2, is operated to permit pulp te flow 'through the opening B3? and tlie Dump (noi shown) presses elle pulp tliiougii elle pipe A, into ilie box B, in siiiiieient quantity le maineiii the level of said pulp substantially as indicated by elle broken lines I), in Fig, l. Should the pulp became a li'tele thicker than when the gaie C, was irs: opened, moi-e pressuie will. be requirecl to fome. it hiough the pipe fs; eiound ift-lie bende e, a,5lie1ei., azi.

quently the pressure will aciI to 'force the diaphragm l), upward, ancl thereby through the liquid E', in the cylinder E, force the piston F, 'upward in the cylinder ll, and thereby, through the piston-rofl H, and lever G', will suiiciently close "che opening B3, and maintain il, so, While the thicker pulp being supplied. to the bei; l; thus reducing the volume of pulp passing through the opening B, to he screen machine, `:vhile not reducing the amount of liber being suppliefi through said opening. When, however, the pulp passing through the pipe A, becomes thinner, tlc resistance caused by the bends a, e, in said pipe, becomes less, and the pressure in. said pipe is correspondingly re duced, which permits :lie piston l?, to move downwardly and the gate valve C, to move 'upv/army, thereby allowing the greats? quantity of pulp to pass hrough the opening B1. le is, of course understood, that the traveling screen of the paper making machine, travels ae a uniform speed and thas4 when the pulp is ih' li, it is necessary to relluce the size of the stream lroni the loos; B, and when it becomes thin, to increase the size of die stream; this my invention is de' signed te automatically do.

Havin thus shown and described suitable zi'icclianisin for canning' out .my invention so. as to enable eth1-s to construct the same, what l claim as new, and. clesire to secure by Letterslnatent, .is

l ln an apparai-us of the character clescrinecl, pulp .living an opening .through which pulp may flewK eo a paper making machine, a gate to control said opening, a pipe for supplying pulp to said bex, cylinder 'ano'. pistou mechanism communieating with saici pipev adapted `to be actuated by prese-ure within pipe, ancl mechanism operated by said piston adapted to actuate said gate, substanially as sei: iorth.

2. an apparatus of the character flescrihcfl, pulp box having an opening through which pulp may flow to a paper making mahine, e gaie to control said opening, a' pipe for supplying pulp to said box leading thereto, and mechanism adapted to be actuated by changes of Within said pipe to conrol sai-l gate, substantially as sce forh.,

In an apparatus of the character Clescrihed, a pulp box haring an opening ther 1,in through which pulp may flow to a paper making machine, a gate to control said opening, a pipe fior supplying pulp o piscon and lever mechanism actuated hy chaiges o pres l`ing, a valve for sacl opening, a. supply pipe leading to said box, an opening therein, a

diaphragm closing said openinff., a cylinder4 secureri against said diaphragm, a-piston in saicl cylind i', a. liquid element between said diaphragm and said piston, a lever, ey handscreu' suspended in one end of said lever and connected with said valve, and piston rod secured to sai piston anol pivctecl to the opposite enel oi' lever, suhstanially as sei forth.

6. ln an apparatus of 'he character described, a pulp boi: having a discharge opening, a 'valve for said opening, a supply pipe leading to said box, an opening therein, a diaphragm closing said opening, a cylinder secured against said diaphragm, a piston in said cylinder, a liquid element between said diaphragm and said piston, a lever, a handscrew suspended in one en osaid lever and connected with said valve, an adjustable Weight on said levercan a piston-rocl secured to said piston and pivoted to the cp posite end of said lever, substantially es set forth.

Y. in an apparatus of the character Cw scribed, a pulp box having a discharge opening hrougli which pulpv may flow eo ay paper making machine, a gate to control said openn ing, a pipe leading to said be; Eer supplying pulp thereto, means in said pipe acleptecl to obstruct 'the flew of thick pulp therethrough, and mechanism aclaptecl to be actuated by changes of the consistency of the pulp passing through said supply pipe to control said gate, substantially s 't fori-h,

ln tesiinony whereof l ellis my signature, in presence of 13W@ Witnesses.

HARRY S. El; RCGUBT.

Witnesses El.. M. Strnnenoei, S. D. Mimes,

r)ipe te control che action of sairl 

